package chp10;

public class Test5_Student {

    public static void main(String[] args) {
        Student stu1 = new Student();

        stu1.id = 102;
        stu1.name = "jack";
        stu1.age = 19;
        stu1.gender = "boy";

        stu1.show();

        stu1.addAge();

        stu1.show();
    }
}
